Lossy transmission line.There is a vast Getting Started guide which provides all the necessary information related to the items in the application. I've looked through the manual... Read more
How can I draw a load line of the diode?To learn how to work with this software you can check the Help menu. Also, you can check out these online User Manual 1 and User Manual 2.
LTspice IV is a high performance SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators. The enhancements to SPICE have made simulating switching regulators extremely fast compared to normal SPICE simulators, allowing the user to view waveforms for most switching regulators in just a few minutes.
Included in this download are LTspice IV, Macro Models for 80% of Linear Technology's switching regulators, over 200 op amp models, as well as resistors, transistors and MOSFET models.